package com.company.base.utils;

import java.io.InputStream;
import java.io.Writer;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.dom4j.Document;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;

import com.company.site.mode.resMessage.Article;
import com.company.site.mode.resMessage.NewsMessage;
import com.company.site.mode.resMessage.ResMusicMessage;
import com.company.site.mode.resMessage.ResTextMessage;
import com.thoughtworks.xstream.XStream;
import com.thoughtworks.xstream.core.util.QuickWriter;
import com.thoughtworks.xstream.io.HierarchicalStreamWriter;
import com.thoughtworks.xstream.io.xml.PrettyPrintWriter;
import com.thoughtworks.xstream.io.xml.XppDriver;

public class MessageUtil {
	/**
	 * 返回消息类型：文�?
	 */
	public static final String RESP_MESSAGE_TYPE_TEXT = "text";

	/**
	 * 返回消息类型：音�?
	 */
	public static final String RESP_MESSAGE_TYPE_MUSIC = "music";

	/**
	 * 返回消息类型：图�?
	 */
	public static final String RESP_MESSAGE_TYPE_NEWS = "news";

	/**
	 * 请求消息类型：文�?
	 */
	public static final String REQ_MESSAGE_TYPE_TEXT = "text";

	/**
	 * 请求消息类型：图�?
	 */
	public static final String REQ_MESSAGE_TYPE_IMAGE = "image";

	/**
	 * 请求消息类型：链�?
	 */
	public static final String REQ_MESSAGE_TYPE_LINK = "link";

	/**
	 * 请求消息类型：地理位�?
	 */
	public static final String REQ_MESSAGE_TYPE_LOCATION = "location";

	/**
	 * 请求消息类型：音�?
	 */
	public static final String REQ_MESSAGE_TYPE_VOICE = "voice";

	/**
	 * 请求消息类型：
	 */
	public static final String REQ_MESSAGE_TYPE_VIDEO = "video";

	/**
	 * 请求消息类型：推�?
	 */
	public static final String REQ_MESSAGE_TYPE_EVENT = "event";

	/**
	 * 请求消息类型：扫�?
	 */
	public static final String REQ_MESSAGE_TYPE_SCAN = "scan";

	/**
	 * 事件类型：subscribe(订阅)
	 */
	public static final String EVENT_TYPE_SUBSCRIBE = "subscribe";

	/**
	 * 事件类型：unsubscribe(取消订阅)
	 */
	public static final String EVENT_TYPE_UNSUBSCRIBE = "unsubscribe";

	/**
	 * 事件类型：CLICK(自定义菜单点击事�?
	 */
	public static final String EVENT_TYPE_CLICK = "CLICK";
	
	
	public static final String EVENT_TYPE_LOCATION="LOCATION";
	
	/**
	 * 事件类型：VIEW(点击菜单跳转链接时的事件推送 )
	 */
	public static final String EVENT_TYPE_VIEW="VIEW";
	
	
	public static final String RETURN_MSG_SUBSCRIBE="欢迎您关注常熟市公安局微信公众平台！";
	
	public static final String RETURN_MSG_UNSUBSCRIBE="感谢您的关注，常回来看看";
	

	/**
	 * 解析微信发来的请求（XML�?
	 * 
	 * @param request
	 * @return
	 * @throws Exception
	 */
	@SuppressWarnings("unchecked")
	public static Map<String, String> parseXml(HttpServletRequest request)
			throws Exception {
		// 将解析结果存储在HashMap�?
		Map<String, String> map = new HashMap<String, String>();

		// 从request中取得输入流
		InputStream inputStream = request.getInputStream();
		// 读取输入�?
		SAXReader reader = new SAXReader();
		Document document = reader.read(inputStream);
		// 得到xml根元�?
		Element root = document.getRootElement();
		// 得到根元素的�?��子节�?
		List<Element> elementList = root.elements();

		// 遍历�?��子节�?
		for (Element e : elementList) {
			map.put(e.getName(), e.getText());
			System.out.println("e.getName()="+e.getName()+" +e.getData()："+e.getData());
//			if (e.getName().equals("Recognition")) {
//			System.out.println("语音识别结果："+e.getData());

//			}
		}

		for (Element e : elementList) {
			map.put(e.getName(), e.getText());
			System.out.println("e.getName()="+e.getName()+" +e.getData()："+e.getData());
			List<Element> newelementList=e.elements();
			for(Element ee : newelementList){
				System.out.println("ee.getName()="+ee.getName()+" +ee.getData()："+ee.getData());
				map.put(ee.getName(), ee.getText());
			}
		}

		// 释放资源
		inputStream.close();
		inputStream = null;

		return map;
	}

	/**
	 * 文本消息对象转换成xml
	 * 
	 * @param textMessage
	 *            文本消息对象
	 * @return xml
	 */
	public static String textMessageToXml(ResTextMessage textMessage) {
		xstream.alias("xml", textMessage.getClass());
		return xstream.toXML(textMessage);
	}

	/**
	 * 音乐消息对象转换成xml
	 * 
	 * @param musicMessage
	 *            音乐消息对象
	 * @return xml
	 */
	public static String musicMessageToXml(ResMusicMessage musicMessage) {
		xstream.alias("xml", musicMessage.getClass());
		return xstream.toXML(musicMessage);
	}

	/**
	 * 图文消息对象转换成xml
	 * 
	 * @param newsMessage
	 *            图文消息对象
	 * @return xml
	 */
	public static String newsMessageToXml(NewsMessage newsMessage) {
		xstream.alias("xml", newsMessage.getClass());
		xstream.alias("item", new Article().getClass());
		return xstream.toXML(newsMessage);
	}

	/**
	 * 扩展xstream，使其支持CDATA�?
	 * 
	 * @date 2013-05-19
	 */
	private static XStream xstream = new XStream(new XppDriver() {
		public HierarchicalStreamWriter createWriter(Writer out) {
			return new PrettyPrintWriter(out) {
				// 对所有xml节点的转换都增加CDATA标记
				boolean cdata = true;

				@SuppressWarnings("unchecked")
				public void startNode(String name, Class clazz) {
					super.startNode(name, clazz);
				}

				protected void writeText(QuickWriter writer, String text) {
					if (cdata) {
						writer.write("<![CDATA[");
						writer.write(text);
						writer.write("]]>");
					} else {
						writer.write(text);
					}
				}
			};
		}
	});
}
